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TELEPHONE EXCHANGE SYSTEM.

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APPLICATION FILED JULY 18. I913.

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TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY 18,1913.

Patented Nov. 20, 191?.

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H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY [8. m3.

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H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY 18.1913.

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H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY I8. IBIS.

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H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY 18.1913.

Patented Nov. 20, 191?.

20 SHEETS-SHEET 8.

H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED ]ULY18,1913. 11%41353. Patented Nov. 20, 1.912.

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H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY 18.1913.

1 ,247,853.. Patented Nov. 20, 1917.

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H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY I8. 1913. 1 %73353 q Q Patented N0v20,191'51.

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TELEPHONE EXCHANGE SYSTEM.

APPLICATION HLED JULY 18, 1913.

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TELEPHO NE EXCHANGE SYSTEM.

APPLICATION FILED JULY I8. 1913.

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TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED JULY 18. 1913.

Patented Nov. 20, 1917.

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APPLICATION FILED JULY 18 I913 Patented Nov. 20, 191?.

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APLICATlON FILED JULY 18. I913.

Patented Nov. 20, 1917.

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H. G. WEBSTER.

PatentedNov. 20, 1917.

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